Complexes of the platinum metals. Part 46. 1,1,1,5,5,5-Hexafluoro-3-azapentane-2,4-diiminato derivatives of ruthenium, osmium and iridium. Crystal structure of [Ru{NHC(CF3)NC(CF3)NH}H(CO)(PPh3)2]
作者:Michael B. Hursthouse、Muhammed A. Mazid、Stephen D. Robinson、Arvind Sahajpal
DOI:10.1039/dt9940003615
日期:——
the N,N′-chelating 1,1,1,5,5,5-hexafluoro-3-azapentane-2,4-diiminate ligand NHC(CF3)NC(CF3)NH. Complexes prepared in this manner were [[graphic omitted]H}H(CO)(PPh3)2, [[graphic omitted]H}Cl(CO)(PPh3)2, [[graphic omitted]H}2(PPh3)2(M = Ru or Os) and [[graphic omitted]H}H2(PPh3)2. Under similar conditions [Ru(O2CCF3)2(CO)(PPh3)2reacted to afford the complex [[graphic omitted]H}(O2CCF3)(CO)(PPh3)2 in
三氟乙am NH C(CF 3)–NH 2在沸腾的甲苯中,在某些铂金属氢化物的存在下进行缩合反应,释放出氨并形成含有N,N '螯合的1,1,1,5,5的配合物1,5-六氟-3-氮杂戊烷-2,4-二氨基配体NHC(CF 3)NC(CF 3)NH。以这种方式制备的络合物为[[省略图形] H} H(CO)(PPh 3)2,[[省略图形] H} Cl(CO)(PPh 3)2,[[省略图形] H} 2 } (PPh 3)2(M = Ru或Os)和[[图解省略] H} H 2(PPh3) 2。在相似的条件下,[Ru(O 2 CCF 3) 2(CO)(PPh 3) 2反应得到配合物[H](O 2 CCF 3)(CO)(PPh 3) 2,其中分子内氢已经检测到单齿三氟乙酸酯配体的非配位氧与相邻的NH部分之间的键合。对[H] H(CO)(PPh 3) 2进行的X射线晶体学研究证实,具有反式膦配体和螯合NHC(CF)的八面体钌(